Syndrome of endogenous intoxication in rats with acute distributed peritonitis on the background of mercazolilum-induced hypothyroidism

R. I. Verba, I. M. Klishch

Abstract


Introduction. The growth of endogenous toxicosis occurs when the admission intensity of toxic metabolic products increased sharply, or when the activity of antitoxic systems or elimination of toxic metabolites inhibits. The syndrome of endogenous intoxication develops at various pathological conditions, when the number of natural waste products of the body, which appeared in large quantities in biological environments, as well as aggressive components exceeds the capacity of biotransformation.

The aim of the study – to learn the effect of reduced production of thyroid hormones on the indices of endogenous intoxication of rats with acute widespread peritonitis.

Research Methods. The study used white Wistar rats. Hypothyroidism was simulated by the administration of Mercazolil at a dose of 25 mg / kg for 21 days. Acute widespread peritonitis was simulated by injecting 0.5 ml of 10 % filtered fecal suspension into the abdominal cavity of the studied animals. The determination of molecules of average weight, erythrocyte and leukocyte indices of intoxication, level of circulating immune complexes and catepsin D was carried out.

Results and Discussion. It was established that the presence of hypothyroidism in experimental animals to which was simulated acute widespread faecal peritonitis was accompanied by, more expressed than in euthyroid rats, increase in endotoxicosis – medium molecular weight peptides, erythrocyte and leukocyte indices of intoxication, circulating immune complexes and worse dynamics of their normalization. Phase changes in cathepsin D activity were observed.

Conclusions. Deficiency of iodine-containing thyroid hormones is accompanied by a reliable increase in the indices characterizing the syndrome of endogenous intoxication in comparison with the euthyroid animals. This may be one of the reasons for the development of multiple organ failure in these conditions.


Keywords


widespread peritonitis; hypothyroidism; endogenous intoxication.

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DOI: http://dx.doi.org/10.11603/mcch.2410-681X.2017.v0.i2.7964

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